Finding the Fourth Proportional to 2,137.37, 2,946.73 and 1,918.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.37 : 2,946.73 = 1,918.67 : x
2. Step 2: Convert to fraction form
   2,137.37/2,946.73 = 1,918.67/x
3. Step 3: Cross multiply
   2,137.37x = 2,946.73 × 1,918.67
4. Step 4: Simplify right side
   2,137.37x = 5,653,792.86
5. Step 5: Solve for x
   x = 5,653,792.86/2,137.37
6. Step 6: Final answer
   x = 2,645.21